CS17 TOOLS

Calculator Workshop Help

Help and instructions for the calculators in CS17 Calculator Workshop.

Quick Start

1 Choose a calculator from the main menu.

2 Enter your numbers or calculation.

3 Select any options required.

4 Your result will be calculated automatically or when you press =.

CALCULATORS

Main Calculator Help

123 Standard Calculator

The Standard Calculator is designed for everyday arithmetic.

Addition Subtraction Multiplication Division Decimals Percentages

Example:
150 + 25 = 175

ƒx Scientific Calculator

The Scientific Calculator provides advanced mathematical functions for everyday, technical and scientific calculations.

Basic Functions

+ − × ÷ Decimals ± % Parentheses

Trigonometry

sin cos tan sin⁻¹ cos⁻¹ tan⁻¹

Use DEG for degrees or RAD for radians.

Powers and Roots

x² x³ xʸ √x ∛x ʸ√x 1/x |x|

Logarithms and Exponents

log ln 10ˣ eˣ EXP

Constants

π e

Other Functions

n! Ans AC CE Backspace

Example:
Set the calculator to DEG.
sin(45) × 2
Result ≈ 1.414213562

Important: Make sure DEG or RAD is selected correctly before performing trigonometric calculations.

Scientific Calculator Memory Buttons

The Scientific Calculator includes memory functions that allow you to temporarily store numbers while working through a calculation.

MC Clear the calculator memory.

MR Recall the number currently stored in memory.

M+ Add the displayed number to memory.

M− Subtract the displayed number from memory.

Ans Insert the answer from your previous calculation.

$ Tax Calculator

The Tax Calculator helps calculate tax amounts and totals.

The available tax options depend on the selected country.

Australia

Australian calculations use GST.

Add GST Remove GST GST Amount

United States

Select a US state to load its statewide sales-tax rate. A local rate can also be entered where applicable.

Sales tax can vary by city, county, product and transaction. Always confirm the correct tax rate when accuracy is important.

% Percentage Calculator

Percentage tools make common percentage calculations easier.

These can be used for calculating percentages, percentage increases, decreases and related everyday calculations.

$ Finance Calculators

The Finance section contains several separate calculators.

Loan

Estimate regular repayments and the total cost of a loan.

Loan Amount Interest Rate Loan Term Payment Frequency

Mortgage

Estimate mortgage repayments and see how extra repayments may affect the loan.

Property Price Deposit Interest Rate Loan Term Extra Repayments

Compound Interest

Estimate how savings or investments may grow over time.

Starting Amount Contributions Return Years

Savings Goal

Calculate an estimated monthly saving required to reach a savings goal.

Finance results are estimates only and do not constitute financial advice. Actual lender, investment and account results can vary.

% Business Calculators

The Business section contains practical calculators for common business calculations.

Markup & Margin

Calculate selling price, markup and profit margin.

Discount

Calculate discounted prices and savings.

Profit

Calculate profit using revenue and costs.

Break-even

Estimate the number of sales or units required to cover fixed and variable costs.

⇄ Conversions

The Conversion section converts between many commonly used measurement systems.

Length Area Weight / Mass Volume Temperature Pressure Speed Fuel Economy Energy / Power Torque Data Storage

For a dedicated conversion experience, you can also use the CS17 Conversion Workshop.

HELP

Frequently Asked Questions

What is the difference between DEG and RAD?

DEG means degrees and RAD means radians.

Most everyday angle calculations use degrees. Higher-level mathematics may use radians.

90° = π/2 radians

What does Ans do?

Ans inserts the result of your previous Scientific Calculator calculation into the current calculation.

What does EXP mean?

EXP is used for entering numbers in scientific notation.

1.5 × 10⁶ can be entered using scientific notation as 1.5 EXP 6.

Can I use my keyboard?

Yes. The calculator supports common keyboard input for numbers and standard arithmetic operations.

The on-screen buttons can also be used on desktop, tablet and mobile devices.

Does Calculator Workshop work on mobile phones?

Yes. Calculator Workshop uses a responsive layout designed for desktop computers, laptops, tablets and mobile phones.

On smaller screens, menus and calculator controls automatically rearrange to better fit the available space.

Why are some results rounded?

Some calculations can produce many decimal places. Calculator Workshop may round the displayed result so that it remains easy to read.

Do I need to install anything?

No. Calculator Workshop runs directly in your web browser.

Are Calculator Workshop results guaranteed?

Calculator Workshop is intended primarily for general everyday use.

Important professional, engineering, scientific, financial, medical or safety-critical calculations should always be independently checked before being relied upon.

Need More Help?

Found a problem or have an idea for another useful calculator?

CS17 Tools
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